Headphones



FIG. 1 is a perspective view of headphones;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a front view thereof showing the article in a folded position; and,

FIG. 9 is a front view thereof showing the article in another folded position.

The broken lines are included for the purpose of illustration and form no part of the claimed design. 

The ornamental design for headphones, as shown and described. 